Why Is the Sky Blue?

Because the sky is the limit, and limits are essential to calculus, and calculus is math, and math has four letters, and my mailbox currently also has four letters, and my mailbox is located at my front yard, and 1 yard is 3 feet, and 3 feet can be measured with 3 rulers, and 3 rulers is 3 kings, and the King of Puns just looked outside the window and said, "Looks like it's going to be another reign-y day," so he was sad, and therefore he was blue.

Check out Rayleigh scattering :)

Just to be serious, topics that are in blue boxes are those which no one has provided an explanation yet. You are definitely welcome to contribute to those topics. Better late than never!

The sky is blue because the sky is a mirror that reflects the ocean. That is why in Nebraska, because there is no ocean to reflect, the sky is green.

Well, technically, the sky is blue because I took a paint brush and put my favorite color all over the sky, and then my brother painted the night sky HIS favorite color with magic markers. JK!

So the sky is blue because different parts of the light from the sun is either absorbed or passed right through the atmosphere. Mostly red, orange and yellow light is left unabsorbed. Then the blue light is mostly absorbed by the gases in the atmosphere. The gas molecules are then spread all over the atmosphere, thus turning the sky blue.

$WavelengthBlue=Short$

NOONE KNOWS

This question is hotly debated. As mentioned, Rayleigh scattering is the most widely accepted, which is caused by the short wavelength of blue light making it more likely to be scattered by floating dust. The reason violet isn't even more visible is that our eyes are most sensitive to green light. In fact, the difference in scattering between red and blue light is not much, but we also need to factor in the fact that our eyes are much more sensitive (again) to this side of the spectrum, both because of genetics and. Finally, red is not typically an exaggerated color--many things on our planet absorb red and many objects and thus red is present over such a large area while being so thinly spread that our eyes cannot actually see, like if your computer was tinted slightly red, you would not notice after a few minutes.

The sky is blue because I said so.